name of issue featuring Ace the Bat Hound

In DC Daily episode 138, March 31, the interview with Kevin Smith, he mentions that the structure for his story in Detective 1000 is based on a Tom King(?) story about Ace the Bat hound…his origin and development. Couldn’t find that issue anywhere. Does anyone know the issue, name, author etc? Love the DC pet stories.

That was “Good Boy,” a story in Batman Annual #1 (2016).


It was, in fact, Tom King.


Thanks so much. Makes sense why I couldn’t find it. “Ace” is not in the title.